An improved soft-switching PWM full-bridge DC-DC converter modification operating at reduced conduction loss

Author

Hamada, S. ; Maruyama, Y. ; Nakaoka, M. ; Murakami, Y.

Author_Institution

Sansha Electric Mfg. Co., Ltd., Osaka, Japan

fYear

1993

fDate

20-24 Jun 1993

Firstpage

165

Lastpage

170

Abstract

An improved soft-switching PWM full-bridge DC-DC converter is presented. This employs a tapped inductor for low-pass filter to minimize a circulating current flowing through the transformer and switching devices. By using the tapped inductor and a saturable reactor(s), the converter achieves soft-switching with both low commutating and low circulating currents, resulting in low switching and conduction losses. Principle of operation and simulating analysis are illustrated. The effective performance of the proposed converter is experimentally confirmed with a 500 W breadboard

Keywords

DC-DC power convertors; PWM power convertors; bridge circuits; inductors; losses; low-pass filters; switching circuits; 500 W; circulating current minimisation; low commutating currents; low conduction losses; low switching losses; low-pass filter; reduced conduction loss; saturable reactor; soft-switching PWM full-bridge DC-DC converter; tapped inductor; Capacitors; Circuits; DC-DC power converters; Inductors; Leg; Pulse width modulation; Pulse width modulation converters; Switched-mode power supply; Switches; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1993. PESC '93 Record., 24th Annual IEEE

Conference_Location

Seattle, WA

Print_ISBN

0-7803-1243-0

Type

conf

DOI

10.1109/PESC.1993.472081

Filename

472081